Primary Risk Drivers
Below is a snapshot of domains that materially influence the MARA Rating.
Clinical effectiveness
Ranibizumab demonstrated a clear clinical advantage over standard care with significant improvements in visual acuity outcomes across multiple RCTs, including the MARINA and ANCHOR studies. Statistically significant results showed that a higher percentage of patients treated with ranibizumab lost fewer than 15 letters of visual acuity compared to sham injections and PDT. In contrast, pegaptanib showed only modest improvements, with fewer patients gaining significant visual acuity.
Cost effectiveness
Ranibizumab was found to be cost-effective with an ICER of £12,050 per QALY gained, which is below common thresholds. The economic evaluations indicated that ranibizumab provides good value for money compared to standard care and PDT, while pegaptanib’s ICER was significantly higher, indicating less favorable cost-effectiveness.
Quality of life
The evidence indicates moderate improvements in HRQoL associated with ranibizumab treatment, as reflected in visual function questionnaire scores. However, specific validated HRQoL measures were not extensively detailed in the document, leading to a moderate rating.
Supporting Domains
Safety and Adverse Effects
Both ranibizumab and pegaptanib have similar adverse event profiles, with most events being mild to moderate. Serious adverse events were rare, and the overall safety profile for ranibizumab was acceptable, leading to a good rating.
Comparator Selection
The trials for ranibizumab included appropriate comparators such as sham injections and PDT, which are relevant to current clinical practice. The use of these comparators strengthens the evidence base for ranibizumab’s effectiveness.
Patient Population and Subgroups
The patient populations in the trials were well-defined, focusing on those with wet AMD and specific visual acuity criteria. However, there were some limitations in subgroup analyses, leading to a moderate rating.
Care Pathway Integration
Ranibizumab can be integrated into existing care pathways with minor adjustments, such as additional monitoring. The established protocols for administration and monitoring facilitate its adoption in clinical practice.
Resource Use and Cost Implications
The economic evaluations indicated that the resource use associated with ranibizumab is manageable within the Healthcare budget, with a reasonable budget impact. The patient access scheme further supports its affordability.
Evidence Quality and Robustness
The evidence base for ranibizumab is supported by multiple rigorous RCTs with low bias risk. The consistency of results across studies enhances the robustness of the findings.
Uncertainty, Sensitivity, and Broader Impacts
While there are some uncertainties regarding long-term outcomes and treatment duration, the overall context supports the use of ranibizumab, particularly given the unmet need in wet AMD.
